5.6

Tell whether the value is a solution of the inequality.

1. 4x > 11; x = 3

3. 17x > 15; x = 0

5.-7b < 25; b = -4

5.6

2. 16 2 4y; y = 4

4.-7x <9; x = 6

6. x + > 0; x = -1

Cumulative Review Warm Up

Solve the literal equation for x.

1. y = 3x - 9x

3. y = 3x rx 7

5. 11 + 6x + 3kx = y

182 Algebra 1 Resources by Chapter

2. a = x - 7x2

sx - x = r

6. X = 86x -

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!

interest rate - 12.000%  

final payment - $355.40

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)